Combined type-writing and computing machine.



B. C. STICKNEY.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATIDN FILED JUNE 30. 19H.

Patented Jan. 30, 191.7.

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B. CfsTlCKNEY. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED JUNE30. 1911.

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B. CA STICKNEY.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLIcAnoN F1LED1uNE3o.1911.

1,214,482. Patented 111.80, 1917.,

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WITNESSES:

INVENTOR:

FIG. 5.

B. C. STICKNEY.

COMBINED TYPE WRITING AND COMPUTINC MACHINE.

APPLICATION FILED JUNE 30,1911.

1,214,482. Patented Jan. 30,1917.

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COMPUTING MASI-'LINE CGLVANY, 0F NEW' YGRK, N. Y., A GGBERATIQN OF NEVI'YORK.

Specification of Letters Patent.

COMBNED TYPE-'WRTNG LND COMPUTING MACHINE.

iPatented Jan, 3Q, itil?.

Application filed June 30, 1911. Serial No. 636,201.

T0 @ZZ whom t may concern:

Be it known that I, Benni-mai C. STICK- NEY, a citizen of the UnitedStates, residing in Elisabeth, in the county of Union and State of NewJersey, have invented certain new and useful improvements in CombinedType-VVriting and Computing Machines, of which the following is aspeciiication.

This invention relates to combined typewriting and computing machines ofthe kind in which a relative step-by-step movement is effected betweenthe master wheel and a system of computing wheels concomitantly with theletter-feeding movements of the carriage of the typewriting machine, andin which a rotation or movement of the master wheel or device iseffected as each key is operated. In this class of machines there isliability, especially during rapid operation of the machine, of themaster-wheel to be rotating while the typewriter carriage is in motion.ln other words, during rapid operation, there may be overlapping ofmovements of the master-wheel and the carriage. Such overlapping ofmovements may result in errors in the computation. To attain as aresult, increased accuracy in machines having this tendency of themaster-wheel and typewriter carriage to move at times simultaneously, ithas heretofore been proposed to prevent such simultaneous movement. Oneof the ways proposed consists in providing a stop which prevents theoperation of the master-wheel by or through the keys, unless saidmaster-wheel is in proper relation with one of the computing wheels.`While the provision of such means may prevent simultaneous movement ofthe computing wheels and carriage, it makes it necessary to operatc themachine at a lower speed. which is confrsing` to the operator. andliable to lead to mistakes if the keys fail now and then to vield whenpressed upon. Another mode of opera tion, depending on the sameprinciple as above suggested, has been to prevent the carriage fromstarting to move until after the rotation of the master-wheel. but thisdoes not permit of as high speed of operation of the typewriting machineas is desirable in some cases. Operating on the same principle, it hasalso been proposed to let the tvl'iewriter carriage control the rotationof the computing mechanism, so that the computing mechanism cannot turnuntil the carriage has completed its letter-feeding movement, and thusbrought about a proper relation between the master-wheel and a computingwheel. all of the modes of operation that have been proposed, thesimultaneous operation of the computing wheels and the carriage isprevented. Y

rlhe main object of the vpresent invention is to secure accuracy in amachine of the general character referred to, and at the same timepermit high speed of operation of the typewriting machine. To this end,there is no attempt made to prevent simultaneous movement oi thecarriage and computing wheels, but, on the other hand, such simultaneousmovement is permitted, but at the same time it is assured that themovement of the master-wheel out of engagement with the wheel it hasjust been turning does not take place until said wheel has completelyfinished its turning movement, even though during such turning movementof the computing wheel by the master-wheel, the carriage may be inmotion. In other words, the master-wheel is maintained in engagementwith the live computing wheel, that is the wheel to be turned or the onebeing turned a length of time sur'licient to insure a full turning ofsaid wheel independent of the movement of the carriage. In this way thecarriage steps at its normal rate, but the master-v heel may not movenecessarily with it, but sticks to the live computing wheel as long asis necessary to fully turn said wheel.

The improvements are illustrated in connection with a master wheel whichis connected up to the paper carriage to travel tl erewith, while thesystem of computing wheels remain stationary; but it will be understoodthat the invention is applicable to machines in which the computingwheels travel step-by-step while the master wheel remains stationary; orin which both master wheel and computing wheels travel simultaneous`ybut in opposite directions.

According to this invention, when or immediately before the typewritercarriage comes to rest in its letter-feeding movement, the master wheeljumps to the next computing wheel in the system, that is, the next wheelof lower dnomination, instead of remai in mesh with the computingwheelwhich i" has just rotated. This jumping of the mas'er wheel is effectedautomatically,

it will be noted that inand anticipatively or in advance of the nextletter-feeding movement of the carriage.

ln machines in which the computing wheels are rotated by source ofpower, as for instance the Underwood combined typewriting and oomputino`machine, to which one form of the present invention is shown as applied,it is usual for the figure type key to set a computation pin and also tocause the typewriter carriage to feed. At the conclusion of thecarriage-feeding movement, the computing mechanism revolves, and themaster wheel thereof remains uselessly in engagement with the samecomputing wheel which it has just turned, and which is therefore deadfuntil the next key is operated.

ln the 'form of the present invention illustrated in the drawings, thereis a relative positioning et the master-wheel and computing wheelsindependently of the carriage. Preferably the master wheel jumps to thelive computing wheel, or the computing wheel of nent lower denomination,independently of the carriage, and this movement preferably taires placejust as the carriage comes to rest upon completing its letter-feedingmovement.

T he master-wheel and parts traveling therewith are very light, and movequickly, so that they can jump the short distance required, by the timethe paper carriage comes to rest, even il said parts are released forsuch umping movement during the last part of the letter-feeding movementof said carriage. The master wheel therefore remains in engagement withsaid live wheel, e. the computing wheel of next lower denomination tothat whichhas just been rotated, from the time the paper carriage comesto rest, almost until the time when it comes to rest again, thus greatlyprolonging the interval during which the master wheel is in engagementwith the live wheel. The master wheel does not linger, as heretofore inthis machine, in engagement with the computing wheel which it hasturned, and which is therefore dead, but jumps to the computing wheelwhich it is to rotate next, that is, the live wheel, and remains inengagement with the live wheel from the time the carriage comes to rest,after one ligure is printed, practically the entire time until saidpaper carriage comes to rest a'ter the next tlgure is printed. ln otherwords, there is practically no interval of time in which the i asterwheel is in engagement with a dead computing wheel. This saving of timeis a Vital one in machines which are operated at such high speed astypewriting machines. This feature, consisting of eitliecting a relativetraveling or positioning movement between the master wheel and thesystem of computing' wheels in advance of or out ol time with thecorresponding movement of the carriage, may be employed in many ways,and in dilerent kinds of machines, and not limited to machines of theillustrated, in which the computing wheels are power-driven, and inwhich the in( ependent positioning or shitting movement between themaster wheel and the computing wheel occurs just as the typewritercarriage is coming to rest, or even during the movement of the carriage,since such shitting movement may occur regardless of the earriage, assoon as any computing wheel is rotated and hence becomes dead.

The scope of the invention includes any means whereby a simultaneousdrive of the computing wheels and stepping movement ot the carriage ispermitted in a machine oit' this character.

rlhe scope of the invention also includes any means whereby any relativeshitting movement is effected between the master wheel and the computingwheels in advance of the corresponding carriage-feeding movement, orindependently of such carriageleeding movement, to lengthen the timeduring which the master wheel remains in enga gement with the livecomputing wheel.

ln the present form of the invention, aiter the relative independentjumping or shit'ting movement has been effected between the master wheeland the system of computing wheels, so that the master wheel eitects theadvance connection with the live ofmputing wheel, provision is made formaintaining this connection during the4 ensuing letterfeeding movementof the carriage, that is, the master wheel remains in connection withsaid live computing wheel until the ensuing letter-feeding movement ofthe carriage is almost completed, and then jumps again to the wheel ot'nef-:t lower denomination.

lt should be explained that in machines in which the computing wheelsare rotated by power applied by means of Finger keys, and in which thewheels are rotated during the down. strokes ol the linger keys, andhence in .vhich the rotation is completed bv or before the time thatsaid down stroke oi the lcey is finished, the relative jumping orshitting movement oit' the master wheel and computing wheels may beginat about the beginning` oi the ensuing letter-feeding movement ot thecarriae'i-i, so that the i'mister-wheel will be in connection with thecomputing wheel ot next lower denomination, during the early part of theletter-feeding movement oi the carriage, whereby in case the next key isdepressed by the time the carriage has made only a short portion of itsmovement, the appropriate computing wheel will be turned by the masterwheel. 'lfhe type may perhaps strike the paper the instant the carriagestops, or possibly a little before; but the computing wheel is rotatedproperly, so that no liability ot' error can arise.

The principle of operation just set forth CII is substantially thatembodied and disclosed in my co-pending application Serial No. (ll-,535,tiled Gctoher 13, 1911.

It is the usual practice vin said Underwood machine, to set thecomputing pin during the down stroke of the type key, and to cause thecomputing mechanism to rotate upon the upstroke of the type key, thuslosing time, the loss arising partly Jtrom the pause of the linger onthe key at the bottom of the stroke; and another object o the presentinvention is to reduce or avoid the loss of time between the setting ofthe computing pin and the rotation of the computing wheel. To this end Icontrive to cause a single down stroke of the key to effect both thesetting of the computing pin and the rotation of the computingmechanism. l provide means whereby the computing mechanism is releasedfrom the key upon the computing pin being set. This is done at or duringthe down stroke of the key, so that certain members of the computingmechanism can return to normal positions in ad- Vance of the return ofthe key to normal position, and preferably in advance of the completionof the down stroke of the key. During the return of said certaincomputing devices to normal positions, the rotation oi the computingwheel occurs; and it will frequently happen that the rotation of saidwheel will be completed before the operator :fully releases the key, oreven before vthe key starts on its return movement upon such stroke, andhence before the carriage of the typewriter starts to feed; although ifthe lmachine is operated rapidly, it may happen that the rotation of thelive computing wheel will not be completed until after the typewritercarriage has started to feed. From the foregoing explanation, it will beunderstood that such movement of the paper carriage during the turningof the live computing wheel is provided for; the master wheel Y and thelive computing wheel remaining in mesh not only while the carriage isstationary, but also during the principal portion of the feedingmovement et the carriage. Upon the return of the key to normal position,it reconnects automatically with said certain members or" the computingmechanism, for effecting subsequent operation of the latter. lt will beunderstood, however, that the automatic releasing mechanism between thekeys and the computing devices may be employed where the computingwheels are driven by linger-power applied to the keys, instead of by aseparate source of power, and will result in increase of speed andaccuracy ot operation, as compared with prior key-driven computingmachines.

Other objects and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a sectional side elevation ofan Underwood combined typewriting and computing machine, showing thepresent improvements applied thereto. Fig. la is a sectional elevationof letter-feeding mechanism. Fig. 2 is a diagram to illustrate theconnection of the pin-carrying escapement wheel of the computingmechanism, with the master wheel thereof. Fig. 3 is a part sectionalrear elevation, showing in normal positions, the devices or eliectingthe anticipative advance movements of the master wheel. Fig. 4 is a'fragmentary sectional rear elevation of means associated witn thetabulating mechanism for automatically disconnecting the master wheelfrom the paper carriage of the typewriter. Fig. 5 is a detail oit aspring device for lifting a hook which intermittently connects themaster wheel to the typewriter carriage. Fig. 6 is a part-sectional planview of the connections oi? the typewriter carriage to the computingwheels. Fig. 7 is a perspective view ot' the hook mechanism whichintermittently connects the master wheel to the typewriter carriage.Fig. S shows a form of column stop to cooperate with said hook. Fig. 8ashows an ordinary column stop. Fig. 9 is an elevation of a set ofinterfering blades which prevent two or more figure keys from beingdepressed simultaneously. Fig. 10 is a sec` tional detail of theconnection of the master wheel to its driving gears. Fig. 11 is a perlspective view, showing the automatically releasing connections betweenthe numeral type keys and the computing mechanism. Fig. 12 is a rearelevation of the automatic trip connecting the keys to the computingdevices. Fig. 13 shows a. position of the trip when the key is fullydepressed. Fig. 1l illustrates the operation of the interfering bladesseen at Fig. 9.

Numeral type keys 1 and alphabet keys 2 are mounted upon the forwardends of levers 3, which operate bell cranks l to s ing type bars 5upwardly and rearwardly against the front side of .a platen (i, which ismounted on a carriage 7, the latter driven b v a spring S and strap 9,Fig. 3, and having a rack 10 meshing with a pinion 11 connected to anescapement wheel 12. This wheel is controlled by dogs 13, 1-1, thelatter driven by a trame 15 pivotally supported upon idle arms 16, andcarrying at its front end a segmental universal bar 17, which is drivenby heels 1S on the type bars, as usual i-n the Underwood typewritingmachine.

Fach numeral key lever has a .finger 19 to catch upon a pendenthook-shaped pawl orr trip 20, which is pivoted at its upper end at 20 toan arm 21 of a bell crank. The other arm Q2 of said bell crank isconnected by a link .a8 to a lever 2l, which carries at its free end acam 25, which at the swinging of said lever by means of said key, en-

gages one of a circular set of escapement or index pins 26, to projectit from the op posite side of a wheel 27, upon which said pins aremounted. r1`his escapement-pin wheel or index wheel and the parts driventhereby, as well as the means for driving said wheel, are set forth inpending applications No. 556,378 filed April 19, 1910, and No. 574,813,filed August 1, 1910, the escapement pin wheel 27, in said applications,being driven by a motor 28, which has a frictional connection with atrain of gearing 29, the latter including a bevel gear 30 on the sameshaft as a gear 30a which meshes with a pinion 31 on the shaft of saidescape ment pin wheel 27. Hence there exists a constant tendency torotate said wheel.

A four-toothed pinion 32 is engaged and rotated by the pins 26 in theorder of their projection; the rotation of said pinion 32 beingcontrolled by a secondary escapement wheel 33, which normally isarrested by a feeding dog 34 operated by the keys 1. The movement of thedog is effected through any lever 24. Said levers bear upon a universalplate or member 35, mounted upon a sliding rod 36, and having areturning spring 37; said plate connected by a head 33 to a lever 39,which thrusts a link 40 to rock an arm 41 upon a rock-shaft 42 whichcarries said dog 34. This movement of the rock shaft to the positionseen at Fig. 11, permits the tooth of the secondary escapement wheel 33to escape from the dog 34, and to be 'temporarily detained (F ig. 11) bya dog 43 also fixed on the rock shaft in front of the dog 34.

Upon the return movement of the rock shaft 42 (effected by the spring37) the es* capement wheel 33 slips oft from the dog 43, and the pin 26shown in engagement with pinion 32, turns the latter and escapestherefrom, while such pin 26 as has just been projected is carried bysaid wheel 27 into engagement with the pinion 32, thereby bringing thenext tooth of esoapement wheel 33 into engagement with the dog 34. Afixed cam 43, Fig. 11, returns the set pins to normal positions.

During the descent of the key and trip 20, and preferably about half-wayof the stroke of the key, an arm 44 provided on the trip 20 above thepivot 20a, engages a stop or tripper 45, which may be in the form of apin projecting from a plate 46, which carries the bell crank 21, and thetrip is swung on its pivot 2Oa to disengage it from the linger 19 on thekey lever, as seen at the right-hand portion of Fig. 12. This permitsthe spring 37 to return the universal plate or member 35 to normalposition, together with the parts 39, 40, 41, 42, 34 and 43, thuspermitting the main computation vheel 27 to be rotated, together withone of the digital computing wheels (presently to be described) inadvance of the return of the key 1 to normal position, and this returnof the above mentioned parts may ocour during the final portion of thedown stroke of said key, since these parts may be very light and ofquick action.

The lever 24, pin 23, and bell crank 21, 22 are returned to normalpositions by a spring 47 (Fio. 14) while the key lever 3 descending tothe bottom of the stroke, as seen at Fig. 13, or while it is momentarilyheld in such position by the operators iinger. The operator cannotprevent the n1- stant return of the disconnected computino' parts tonormal positions, and the instant rotation of the computing wheels.

Upon relief of the key from pressure, it is returned by the usual spring48, Fig. 1, and the trip 20 is snapped under the linger 19 by means of aspring 49, with which each trip is provided.

The trips preferably pass through perforations 50 in a rod 51, havingmeans, such as 52, whereby it may be shifted endwise or to the left atFig. 11, to withdraw all of the trips, for silencing the computingmechanism.

The connection between the pin-carrying escapement wheel 27 and the dialwheels comprises a pinion 53 in mesh with said bevel gear 30, and fixedupon a shaft 54 which carries at its other end a pinion 55 to mesh witha pinion 56 on a vertical shaft 57, upon which is provided a bevelpinion 58 meshing with a pinion 59 upon a shaft 60, upon which slides amaster wheel 61, Fig. 6, the latter being splined upon the shaft, whichfor this purpose is made square in cross-section. The master wheel hasopposite teeth 62, which work in notches G3 in computing wheels 64,which are geared to mesh with gears 65, consisting of dial wheels 66.The tens-carrying mechanism is of the usual Construction, and is notshown. These computing` and dial wheels are mounted in a casing 67,which is secured upon a bracket 63, the latter secured to the frameworkof the machine. r1`he master wheel G1 is swiveled to the end of a hollowarbor 69 which does not rotate, but is arranged to slide with the masterwheel to and fro upon shaft 60. This arbor 69 projects from one end of aslide or carriage 70 which also comprises a tubular member 71 slidingupon a xed rod 72. This master wheel carriage 70 is connected by a pin73 to a slot 73a in a lever 74 fulcrumedl at 75, and at its rear endcon* nected by pin 76 and slot 76a to a block 77 sliding in a tubularguide 78, and carrying one end of a exible stem 79, a hook SO upon theother end of which is engageable with one or more of a series of lugs 31adjustable along a rack 32 fixed upon the typewriter carriage 7; theteeth in said rack being formed at letterspacing intervals, as usual.

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Wheel is reduced-to a minimum, and there a corresponding increase inaccuracy and spcdot operation vot the machine.

1t will be understood that in said Un ler- 'rv'ood machine, thetypewriter carriage escapement vheel 12 does not rotate backivardlyat'any time, so that there can be no 'also movement of the pallet 9G andits conctio'is from this source; a paWl-andtchet mechanism being usuallyprovided ctv-seen the pinion11 and said escapement `vheel 12, to permitthe carriage to run back Without turning said escapement .vlieel.

Preferably means are provided for silencing the pallet 96 when thecarriage 7 is out ot the computing field. 'To this end, a pin 101- isprovided .upon the hook 80, to strike an varm 105 and-turn the same,Whenever said hook is released from the lug-S1 and returned by thespring 89; the contact between said pin 10eL and said arm 105 occurringjust before the end of the hook stem 79 strikesan adjustable .screivstop 10G in the housing'TS. The arm 105 is theretorev given a slightvibration to the left at Fig. 3, and rocks its shaft 107 andA swingsdownwardly an arm 108, thrusting down a link 109, which, at its lowerend, is pivoted to an arm 110, Fig. 1, on a swivel or rocker 111, Fig.3, upon which said pallet 96 is pivoted at 97. This swings the pallet tothe right at Fig. 1, out of the path of the teeth ofthe escapement Wheel1:2, so that no movement of the pallet occurs when the carriage 7 is outof the computing eld. rl"he spring is set diagonally, as seen at Fig. 6,so as to return the parts 96, 111, 110, 108, 105, to normal positions(with lug 1120i on arm resting against stop 112k) Whenever the hook 80is caught by the lug 81 and carried a step to the right, as seen atFigs. 3 and 6,1 the mastei' Wheel 61 being now brought into position foruse, as above explained; said master Wheel occupying a position clear ofthe computing- Wheels and to the right of its position in Fig. 6,whenever the stem'79 engages the screw-stop 10G. The devices'105, 108,110 and 111, may however be omitted in some Cases, and the silencing-oi'the pallet 96 dispensed with. When thev carriage 7 -is positionedby-means ot a lrey 86, the master Wheel Will be i'found in mesh With acomputing Wheel ofthe same denominationas the operated key S6.

It will be understood that in son e machines the devices forautomatically re-positioning the-master Wheel in anticipation oit' thelnext 'movement of the typewriter earriage may be employedwithout thedevices which automatically release the computing members 'from thekeys, and vice versa.

Still-v other portionsotV the invention in ay-'be usedpseparatel7 .andWide variations may-be resortedltowithin the scope of the severalJfeatures of the invention.

Where in the claims l use the terms inaster Wheel or computing Wheel, itWill be understood that l mean to include all equivalent devices; suchfor instance as bars ror racks provided With or connected to suitableydials or indexes.

.Having thus vdescribed my invention, I Claim:

l1. The combination with a letter-feeding carriage, and tivo primaryelemens having relative step-by-step movements confcomil' by saidmaster-Wheel, of means tor automatically effecting relative positioningor shifting of said primary elements to engage the master Wheel with thelive computing wheel in Aadvance oi the corresponding feed movements oisaid carriage, to prolong the interval during which the master-Wheel isengaged to the live computing Wheel.

Q'. The combination of a carriage and escapement mechanism therefor,tivo primary elements having relative step-by-step movementsconcomitantly with the movements ot said carriage, one of said primaryelements being a master Wheel, and the other oi said primary elementscomprising a set of computing Wheels individually actuable by saidmaster ivheel, and means controlled by said escapement mechanism toreffecting relative positioning el said primary el unents to prolong theinterval during which the master 7 wheel is engaged to the livecomputing Wheel. l

rEhe combination ivith a letter-feeding carriage, and tivo primaryelements having relative step-by-step movements concomitantly with themovements oic said carriage, one of said primary elements being amaster-Wheel, and the other oit said primary elements comprising a setof computing Wheels or members individually act-liable by said masterWheel, of means for automatically ef- 'tecting a relative shift orpositioning oit said primary elements to engage the master wheel withthe live computing Wheel during the feeding movement or' the typewritercarriage.

il. rhe combination ot a carriage, an escapement or feeding mechanismtherefor, including an escapeinent Wheel or rack. tivo primary elementshaving relative step-bystep movements concomitantly with the movementsotl said carriage, one ot' said primary elements being a master Wheel,and the other ot said primary elements compris- .ing a set of computingWheels individually rotatable bvv said-master Wheel, a pallet engagingsaid escapement Wheel. a connection 'from sai'dfpallet to'one'o'icr saidprimarv elements, and a spring to effect a limited shift or positioningof the same with relation to the other of said primary elements whensaid pallet escapes from a tooth of said esca-pement wheel.

5. The combination of a carriage, an escapement or feeding mechanismtherefor, including an escapement wheel, two primary elements havingrelative step-by-step movements concomitantly with the movements of saidcarriage, one of said primary elements being a master wheel, and theother of said primary elements comprising` a set of computing wheelsindividually rotatable by said master wheel, a pallet engaging saidescapement wheel, a connection from said pallet to one of said primaryelements, and a Spring to effect a limited shift or positioning of t-hesame with relation to the other of said primary elements when saidpallet escapes from a tooth of said escapement wheel; means provided forautomatically silencing the pallet when the machine is not computing.

G. The combination of a. letter-feeding carriage, two primary elements,one being a master wheel and the other comprising a set of computingwheels individually rotatable by said master wheel, one of said elementsmounted to travel, means to connect said traveling` element to saidcarriage, means to disconnect said traveling element from the carriageand reconnect it thereto at a different. point, and means for aHectingthe connection between said carriage and said traveling element in amanner to cause said traveling element to shift to the extent of notmore than a letter-space independently of the carriage, to prolong theinterval during which the master wheel is engaged to the live computingwheel.

7 The combination with a set of numeral keys, of a set of computingmembers, a master member, means brought into action under control ofsaid keys, for both causing the rotation of the master member anddetermining the extent of its rotation, and means under control of saidkeys for releasing said key controlled means from the keys to enablesaid means to act independently of the return of the keys to normalpositions.

8. In a computing machine, the combination with computingmechanismincluding denominational members, a master member and a step by stepfeeding carriage, of means controlled by said carriage for producingrelative movement between the denominational members of the computingmechanism and master member, said means including devices operating tomaintain any denominational member of the computing mechanism and mastermember in driving relation during a substantial part of each step of thecarriage movement.

9. In a combined typewriting and computing machine, the combination.with computingl mechanism including denominational members, a mastermember and a step by step feeding carriage, of means controlled by saidcarriage for producing a relative movement between the denominationalmembers of said computing mechanism and said master member to enable ascf/intim drive of the former by the latter, said means including` aspring for moving said master member, said spring being put undertension during letter feeding movement of said carriage and means forreleasing said spring from tension at substantially the Conclusion ofthe feeding movement of said carriage whereby the master member and anydenominational member of the computing mechanism are maintained indriving relation during a substantial part of each step of the carriagemovement;

l0. rlhe combination with a set of numeral keys, of a computingmechanism, including` a set of computing members, a power-driven mastermember, means normally restraining said master-member, means broughtinto action under control of said keys, for both causing the rotation ofthe master-member and determining the extent of its rotation, Vand meansdependent upon the operation of any key for releasing `aidkey-controlled means from the operated key to enable said master memberto perform its function independently of the rcturn of the operated keyto normal position.

ll. The combination with a set of numeral keys, of a computing mechanismincluding a set of computing members, a power-driven master wheel, meansnormally restraining said master wheel, a universal disk or memberoperable by said keys, means controlled by said universal member forfeeding the master wheel. means controlled individually bv the keys fordetermining the extent of feed or rotation of the master wheel, andmeans dependent upon the operation of any key, 'for releasing both saiduniversal member and said key-controlled means from the operated key, toenable said master wheel to perform its function independently or inadvance of the return of the operated key to normal position.

12. rlhe combination with a set of numeral keys, of a power-drivencomputation wheel having` escapement pins, individual means to enablesaid keys to set said escapement pins, means normally restraining` saidwheel from rotation, a universal member operable by any key andcontrolling the escapement or feeding movements of said wheel, meansdependent upon the operation of any key for disconnecting it from bothits pin-setting member and said universal member, and means to returnsaid pin-setting member and universal member to normal positions inadvance of the operated key.

18. T he combination with computing mechanism of numeral keys, andconnections for controlling the action of said computing mechanism,locking means in said connections for preventing computation withanother key until a computing action started by one key has beencompleted, means independent of the return of the key for returning saidlocking means, and means to enable said connections to be controlled bysaid keys to permit said keys to start a computing action on their downstrokes and to return after having been depressed to start such.computing action at any time before or after the computing action hasbeen completed.

14E. rlhe combination of keys, spring-returned individual interferingblades connected thereto to prevent the simultaneous operation of twokeys, and means between the keys and the blades and dependent upon. theoperation of the keys for automatically disconnecting any key from itsblade, to permit said blade to return in advance of the key, so thatanother key may be started during the final portion of the return of thefirst key to normal position, thereby permitting rapid operation of thekeys.

15. The combination of numeral keys, computing mechanism controlledthereby and including computing wheels and also including aspring-returned member universal to said keys and forming part of afeeding or rotating mechanism for the computing wheels, and meansdependent upon the operation of any key for disconnecting it from saiduniversal member to enable the. latter to return to normal positionindependently ofthe depressed key.

1G. The combination with typewriting mechanism including a carriage,type-operating numeral keys, means controlled by said keys for feedingthe carriage, and a computing mechanism including as primary elements apower-driven master wheel and a set of' computing wheels, of meansnormally restraining said master wheel, means controlled by said keysfor releasing the master wheel and determining the extent of itsrotation, means dependent upon the operation of any key for releasingsaid key-controlled means therefrom, to permit said keycontrolled meansto complete its operation in advance of the return of the "key, meansconnecting one of said primary elements to said typewriter carriage, andmeans for automatically effecting relative re-positioning of saidprimary elements during the feeding movement of vsaid typewritercarriage.

17. The combination with typewriting mechanism including a carriage,type-operating numeral keys, means controlled by said keys for feedingthe carriage, and a computing mechanism including as primary elements apower-driven master wheel and a set of computing wheels, of meansnormally restraining said master wheel, means controlled by said keysfor releasing the master wheel and determining the extent of' itsrotation, means dependent upon the operation Of any key for releasingsaid key-controlled means therefrom, to permit said key-controlled meansto complete its operation in advance of the return of the key, meansconnesting one of said primary elements to said typewriter carriage,means for automatically effecting relative repositioning of said primaryelements during the feeding movement of said typewriter carriage, andmeans'for automatically silencing the re-positioning means when thetypewriter carriage is out of the computing field.

18. rlhe combination with two primary elements, one consisting of amaster-member and the other consisting of a set of computing members, ofmeans for effecting relative lateral step-by-step movement between saidprimary elements, and means for automatically effecting lateraldisplacement of one of said elements relatively to the step-by-stepmoving means, at each step-by-step movement 19. The combination with twoprimary elements, one consisting of a master member and the otherconsisting of a set of computing members, of mechanism for effectingrelative step-by-step movement between said primary elements, and meansfor effecting automatically an anticipative relative movement betweensaid primary elements whereby engagement is effected between said mastermember and the live computing member, and for maintaining suchengagement during the ensuing movement of the step-by-step mechanism.

20. The combination with a carriage and escapement or feeding devicestherefor, of two primary elements, one comprising a master-member andthe other comprising a set of computing members, one of said primaryelements connected to said carriage, whereby relative step-by-stepmovement may be effected between said primary elements, and meansconnected to said escapement devices for effect-ing a reciprocation ofone of said primary elements in a manner to effect engagement betweenthe master-member and the live computing member anticipatively of thefeeding movement of said carriage, and to maintain such engagementduring such feeding movement of said carriage.

21. The combination with a step-by-step feeding carriage, of two primaryelements, one comprising a master-member and the other comprising a setof computing members, one of said primary elements connected to saidcarriage, whereby relative step-bystep movement may be effected betweensaid primary elements, and means for effecting automatically and inadvance or' tne feeding movement of said carriage, an anticipativerelative movement between said primary elements, whereby engagement iseffected between said master-member' and the live computing member, andfor maintaining such engagement during the ensuing feeding movement ofsaid carriage.

The combination with a step-by-step feeding carriage, of two primaryelements, one comprising a master-member and the other comprising a setof computing members, one of said primary elements connected to saidcarriage, whereby relative step-by-step movement may be effected betweensaid primary elements, set of numeral keys, a set of trips or releasingdevices connected to said keys, step-by-step carriage-feeding mechanismconnected to said keys, means connected through said trips to said keysfor variably controlling the rotation or driving of said master-inember,and means for eifecting automatically and in advance of the feedingmovement of Said carriage, an anticipative relative movement betweensaid primary elements,whereby engagement is effected between saidmaster-member and the live computing member, and for maintaining suchengagement during the ensuing feeding movement of said carriage.

23. The combination with a carriage and escapement or feeding devicestherefor, of two primary elements, one comprising a master-member andthe other comprising a set of computing members, one of said primaryelements connected to said carriage, w iereby relative step-by-stepmovement may be effected between said primary elements, a set of numeralkeys, a set of trips or releasing devices connected to said keys, meansconnected through said trips to said keys for variably controlling therotation or driving of said master-member, and means connected to saidescapement devices for effecting a reciprocation of one of said primaryelements in a manner to effect engagement between the master-member andthe live computing member, anticipatively of the feeding movement ofsaid carriage, and to maintain such engagement during such feedingmovement of said carriage.

The combination with carriage and eseapement or feeding devicestherefor, of two primary elements, one comprising a master-member andthe other comprising a set of computing members, one of said primaryelements connected to said carriage, whereby relative step-by-stepmovement may be effected between said primary elements, a spring foreffecting a lateral movement of one of said primary elements in a mannerto effect engagement between the master-member and the live computingmember, anticipatively of the feeding movement of said carriage, andmeans connected to said escapement devices for maintaining suchengagement during such feeding movement of said carriage.

25. lThe combination of a letter-feeding carriage having a toothedwheel, two primary elements comprising a master wheel and a set ofcomputing wheels, one of said primary elements connected to saidcarriage, a spring to effect relative shifting of said primary elementto bring the master wheel into engagement with the live computing wheelanticipatively of the feeding movement of said carriage, and a palletmoved by said spring into the path of a tooth of said toot-hed wheel, tobe driven by said tooth during the ensuing feeding motion of the carIiage, and caused thereby to maintain the engagement of said masterwheel with said live computing wheel during said carriage-feedingmovement.

2G. The combination of a step-by-step feeding carriage, a master memberconnected thereto, a set of computing members, and means forautomatically jumping said master-member into engagement with the livecomputing-member in advance of the feeding movement of said carriage andholding said master-member in engagement with said live computing-memberduring the ensuing feeding movement of said carriage.

27. The combination with a carriage having an escapement wheel, of amaster-ineinber connected to said carriage, a set of computing-members,and means to coperate with said escapement wheel to cause saidmaster-member to jump into engagement with the live computing memberanticipatively of the feeding movement of said carriage and maintainsuch engagement during such feeding movement of said carriage.

2S. r-"r combined typewriting and computing machine having computingmechanism, a master member therefor, a step-by-step feeding carriagecontrolling aid master member, and numeral keys controlling saidcarriage and master member; and comprising, in combination, means forincreasingl the speed and accuracy of control of said computingmechanism by said keys, including a set of releasing devices connectedto said keys, said devices being connected for controlling said mastermember for variable rotation and said first mentioned means alsoincluding means for effecting automatically, anticipatively of thefeeding movement of said carriage the jumping of said master member intoengagement with the live computing wheel and maintaining such engageapallet moved by said spring into tne patn of a tooth of said toothedvrheel, to be driven by said tooth during the ensuing feeding motion ofthe carriage, and caused thereby to maintain the engagement oit saidmaster-Wheel `with said live computing Wheel during saidcarriage-feeding movement.

30. The combination with a letter-feeding carriage, of two primaryelements haring relative step-by-step movements concomitantly With themovements of said carriage,

one of said primary elements being a master member and the other of saidprimary elements comprising a set of computing members individuallyactuable by said master member., and means for automatically elifectingrelative positioning and shifting 0i' said primary elements to prolongthe interval during which the master member is engaged with the livecomputing member.

3l. The combination with a stepby-step feeding carriage, oi' a set otnumeral keys controlling said carriage, tivo primary elements, onecomprising a master-iiheel and the other comprising a set of computingWheels, one of said primary elements connected to said carriage, a setof trips, devices controlled by said keys through said trips for bothcausing the rotation of the master-Wheel and determining the extent oitits rotation; said trips operating automatically to disconnect saidkey-controlled devices from said keys; and means for returning saidkey-controlled devices to normal positions independently of said keys.

32. rThe combination with a set ot typeoperating numeral keys, .aletter-feeding carriage controlled by said keys, tivo primary elementswhereof one is connected to said carriage, one of said primary elementscomprising a master-wheel and the other comprising a set 01"' computingvdi-eels, devices for enabling the keys on the down strokes thereof tocont-rol the operation et said master-Wheel, means for effectingdisconnection betiveen the keys and the master-wheel controlling devicesat tlc doivn str kes of the keys, and means 'to cause the master-Wheelcontrolling devices to return to normal positions in advance ot thekeys` 33. The combination oi a letteifecding carriage having a toothedwheel, tivo primary elements comprising a master-Wheel and a set oifcomputing Wheels, one of said primary elements connected to saidcarriage, a spring to effect relative shitting of said primary elementsto bring the master-Wheel into engagement with the live computing Wheelanticipatiif'oly oi? the .te/ed ing movement oi said carriage, and apallet moved by said spring into the path ot a tooth of said toothedWheel, to be driven by said tooth during the ensuin feeding motion ofthe carriage, and caused thereby to maintain the engagement of saidinastcr-Wheel with said live computing wheel during saidcarriage-feeding movement; said pallet constructed to escape from saidtoothed ivheel at about the conchision ot the letter-feeding movement ofsaid carriage, to be caused by said spring to move into the path of thesucceeding tooth coincidently with the 'jumping ot the shiiitableprimary element.

The combination with a computing mechanism, a source ot povvor fordriving the same, and a set of numeral keys, ol means connected to saidkeys for causing the computing mechanism to be started into action bythe source of power, and means for automatically breaking the connectionbetween said keys and said computing mechanism after such starting ofthe coinputing mechanism into action; said source of power beingconstructed and connected to actively continue the operation ot thecomputing mechanism regardless of such disconnection trom the keys.

rl`he combination With a computing mechanism, a source of power fordriving the saine, and a set ol' numeral keys, ot means connected tosaid keys for causing the computing mechanism to be started into actionby the source of power, means for automatically breaking the connectionbctivee saidkeys and said computing mechanism after such starting of thecomputing mechanism into action; said source ot power being constructedand connected to actively continue the operation o't' the computingmechanism regardless of such disconnection from the keys, and means forria-completing the connection after said computing mecl anism hascompleted its action.

36. rlhe combination With a computing mechanism, a source of poiver fordriving the same, and a set oi' numeral keys controlling said computingmechanism through said source oic power, of means for breaking theconnection between the keys and the computing mechanism during a keystroke, said source of power being constructed and connected to activelycontinue operation of the computing mechanism regardless of suchdisconnection from the keys, means for starting the computing mechanisminto action after the breaking of said connection,

means brought into action by any key for determining how much thecomputing mechanism shall move, and means for re-completing theconnection after said computing mechanism has completed its action.

37. The combination with a computing mechanism, including a power-drivenmaster wheel, of a set of numeral keys for starting the action of saidcomputing mechanism, the latter including means controlled by the keys'for limiting the rotation of the master wlnel, and means forautomatically effecting a disconnection between said computing mechanismand any key after the starting of said computing mechanism into action,to permit the rotation of the master wheel to be completed independentlyot the return of the operated key to normal position.

38. The combination with a computing mechanism, including a power-drivenmaster wheel, of a set of numeral keys for starting the action of saidcomputing mechanism, the latter including means controlled by the keysfor limiting the rotation or' the master wheel, and means i'iorautomatically effect ing a disconnection between said computingmechanism and any key after the starting of said computing mechanisminto acf tion, to permit the rotation of the master wheel to becompleted independently of the return of the operated key to normalposition, means being provided for automatically re-connecting thecomputing mechanism to the key upon the return of the latter to normalposition.

39. The combination with a computing mechanism, including a power-drivenmaster wheel, of a set of numeral keys, means controllable by any ofsaid keys for causing said master wheel to rotate, key-controlled meansfor variably limiting the extent ot rotation, and means driven by the`keys for disconnecting them from all of said keycontrolled means.

40. The combination with a set of nu-A meral keys, of a master wheelcontrolled thereby, and automatic means for freeing the master wheelfrom the keys during the action thereof to enable the master wheel tocomplete its movement independently of the keys.

al. The combination with computing mechanism including a power-drivenmaster wheel, a set of computing wheels operable successively thereby,and a set ofnumeral keys, of a member common to said keys forcontrolling the rotation of the master wheel, individual devicescontrollable by said keys for limiting the extent of rotation of themaster wheel, and means to disconnect the keys from said common memberand from said individual devices.

4:2. The combination with computing mechanism including a power-drivenmaster wheel, a set of computing wheels operable successively thereby,and a set of numeral keys, of a member common to said keys forcontrolling the rotation of the master wheel, and individual devicescontrollable by said keys for limiting the extent of rotation of themaster wheel, each key having a single trip effective upon the downstroke of the key for disconnecting the latter from both its individualdevice and said common member.

43. The combination with computing mechanism including a power-drivenmaster wheel, a set of computing wheels operable successively thereby,and set of numeral keys, of a member common to said keys for controllingthe rotation of the master wheel, individual devices controllable bysaid keys :t'or limiting the extent of rotation or' the master wheel.,each key having a disconnect ing means elfective upon the down stroke ofthe key 'for disconnecting the latter from both its individual deviceand said common member, and means for enabling said keys on their upstrokes to effect relative feeding movements between the master wheeland the computing wheels.

44. The combination with a power-driven master wheel, computing wheelsoperable successively thereby, and a set of numeral 9 keys, of a membercommon to said keys for controlling the starting ot the master wheel;means being provided for causing the rotation of the master wheelto becompleted independently or' said common member, and means controlled bythe keys 'for determining the extent oit' rotation of the master wheel.

45. The combination with a computing mechanism, of a normally stationarypowerdriven master wheel, and computing wheels operable successivelythereby, of means common to the keys for setting said master wheel inrotation, a discomiecting contrivance being provided between the keysand said means, so that the latter may complete its rotationindependently of the operated key, and means individual to said keys forcontrolling the extent of rotation of the master wheel.

46. The combination with a normally sta* tionary power-driven masterwheel, computing wheels operable successively thereby, and a set ofnumeral keys, of a member common to said keys for controlling the startof the master wheel, and individual members operated by said keys fordetermining the extent of rotation of the master wheel, said commonmember and said individual members being controllable by the keys onlyupon the down stroke oit the keys, and constructed and operated topermit the computations to be concluded independently and in advance ofthe return strokes of the keys.

47. The combination with a master Wheel,

a motor to drive the same, computation wheels operable successively bythe master wheel, and a set of numeral keys, of a member common to saidkeys for controlling 'the connection between the motor and the masterwheel to cause the latter to be driven by the motor, means between thekeys and said common member to enable the down-stroke of any key tocause the complete operation of said common member, whereby the masterwheel is rotated independently of the up-stroke of the key, and neansindividual to the keys and settable by the down-strokes thereof, forvariably limiting the rotation of the master wheel.

48. The combination with a master wheel, a motor to drive the same,computing wheels operable successively by said master wheel, and a setof numeral keys, of means for -enablin'g the keys to control therotation of the master wheel by said motor and to determine the extentof rotation of the master wheel; means being provided to release saidmaster wheel entirely from the control of said keys on the down-strokesof the latter, and for restoring the control of the keys upon the returnstrokes thereof.

49. rllhe combination with a master wheel, a motor to drive the same,computation wheels, a set of numeral keys, and a cariL-iage foreffecting step-by-step movements between the master wheel and the set ofnumeral keys, of means brought into use by the keys on the down-strokesthereof for causing the master wheel to be rotated by the motor and tobe arrested, and means operable upon the rip-strokes of the keys forcausing the carriage to feed. i

50. The combination with a master wheel, a motor to drive the same,computation wheels. a set of numeral keys, and a carriage for effectingstep-by-step movements between the master wheel and the set of numeralkeys, of means brought into use by the keys on the down strokes thereoffor causing the master wheel to rotate and be arrested and also tobecome released from the control of the keys, and means operable uponthe 11p-strokes of the keys for causing i the carriage to feed; meansbeing provided for automatically restablishing the control of the keysover the master wheel upon the return of the keys to normal positions.

5l. rlhe combination with a series of computing wheels, a typewritercarriage and a master wheel, of means to enable the master wheel to turnthe computing wheels, both when the carriage is stationary and when thecarriage is moving.

52. The combination with computing wheels, a typewriter carriage and amaster wheel, of means for enabling the master wheel to jump to the livecomputing wheel in advance of the movement of the carriage.

rlhe combination with a master wheel and computing wheels, of a carriagetravel ing to effect a relative movement of said master wheel and saidcomputing wheels to bring said master wheel into successive registerwith each of said computing wheels, and compensating means to enable themaster wheel to turn the computing wheels both when the carriage isstationary and when the carriage is moving.

54. rThe combination with numeral keys, computation wheels or members, amaster wheel, an indexing` device to control the rotation of said masterwheel, and independent connections between said keys and said indexingdevice, of means for causing the indexing device and master wheel torotate independently of the keys.

55. The combination of numeral keys, a master wheel, computing wheelsoperable by the master wheel, indexing devices for said master wheel andmeans controlled by any numeral key whereby said key may on its downstroke, control the extent of rotation of the indexing devices, causesaid devices to rotate and disable itself from controlling said. means.

56. The combination of numeral keys, a master wheel, computing wheelsoperable by the master wheel, an indexing device for said master wheel,and means whereby any key during its down stroke may cause the indexingdevice to rotate, determine the extent of its rotation, and also disableitself from controlling said indexing device, means being provided foroperatively re-connecting the key to the indexing device upon the returnstroke of the key.

57. rlhe combination with a computing mechanism, of a series of numeralkeys, con nections from said keys to control the action of saidcomputing mechanism, a traveling carriage, said keys and connectionshaving an initial and a return stroke, said computing mechanism beingstarted into operation du' 1ing the return stroke of said connectionsand said carriage being controlled by said keys during their returnstroke, said keys and connections being releasable to enable saidconnections to begin their return and thereby start said computingmechanism into operation during the initial stroke of said key andbefore any carriage movement.

58. The combination with a computing mechanism, of a series of numeralkeys for controlling said computing mechanism, and individualconnections between said numeral keys and said computing mechanism, eachof said connections camming itself free so as to break the control of anactuated numeral keyI over said computing mechanism after apredetermined movement of the key.

59. The combination with a computing mechanism, of a series of numeralkeys for controlling the action of said computing mechanism, normallycomplete individual connections between said numeral keys and saidcomputing mechanism, and means acting at the depression of any key tointerrupt the connection corresponding to that key, so as to ree thecomputing mechanism from subservience to such key after a predeterminedmovement thereof.

60. The combination with a computing mechanism, of a series of numeralkeys for controlling the action of said computing mechanism, andindividual connections from said numeral keys to said computingmechanism, each connection acting by its continued movement aftereffecting the determination oiI extent of action of said computingmechanism to cam itself to disconnection.

61. The combination with a series of computing wheels, of a master wheelfor driving said computing wheels sem'atz'm, a traveling` carriage, andmeans controlled from said carriage for governing the relativestep-by-step movement between said master wheel and said computingwheels, acting to maintain said master wheel always in register with acomputing wheel when in a computing zone while said carriage is moving.

62. The combination with a computing mechanism, of a series of numeralkeys of connections 'from said keys to control the action of saidcomputing mechanism, said keys and connections having an initial andreturn stroke, said computing mechanism being started in operationduring the return stroke of said connections, said keys and connectionsbeing releasable on the initial stroke of said keys to enable saidconnections to begin their return and thereby start said computingmechanism into operation during the initial stroke of said keys.

63. rlhe combination with a computing mechanism, of a series of numeralkeys for controlling the action of said computing mechanism, mechanicalconnections between said numeral keys and said computingmechanismenabling said numeral keys to start said computing mechanism in action,and means for breaking the mechanical connection between an actuatednumeral key' and said computing mechanism at a predetermined point inthe movement of said key, enabling the completion ofthe computation bysaid computing mechanism independently of the further progress of theactuated numeral key.

64. The combination with a computing mechanism, of a series of numeralkeys for controlling the action of said computing mechanism, a series oflinkages forming mechanical connections between said numeral keys andsaid computing mechanism, and automatically acting means for breakingthe mechanical connection between the actuated numeral key and thecomputing mechanism so as to render the completion of the computingaction of the computing mechanism started by the actuated numeral keyindependent of the further progress of the actuated numeral key.

65. The combination with a computing mechanism, of a series of numeralkeys controlling the action of said computing mechanism, an individuallinkage train connecting each numeral key with said computing mechanism,and automatically acting means for breaking the linkage train from anactuated numeral key to the computing mechanism after the linkage trainhas initiated a computing action of said computing mechanism, enablingthe completion of the computing action initiated irrespective of asubsequent action of the actuated numeral key. said linkage trainautomatically completing itseli2 on a subsequent return of the accordantnumeral key to its normal position.

66. rlihe combination with a computing mechanism, of a series of numeralkeys controlling the action of said computing mechanism, a series oimechanical connecting trains joining said numeral keys with saidcomputing mechanism, and an obstruction lying in theJ path of movementof each of said trains, acting during an operation of the correspondingkey to break the particular mechanical train in action.

67. The combination with a computing mechanism, of a series of numeralkeys controlling the action of said computing mechanism, individualconnections between said computing mechanism and each oi said numeralkeys, and means acting at the depression of a numeral key, to interruptsolely the individual connection joining that particular numeral keywith said computing mechanism after such numeral key has started acomputing action of said computing mechanism, so that said computingmechanism may complete the initiated action irrespective of thesubsequent action of the actuated numeral key previous to its return toits normal unactuated position.

68. The combination with a computing mechanism, including a gang ofcomputing wheels and a master wheel for driving said computing wheelsscriatz'm, of an escapement mechanism for affording a relative movementbetween said gang of computing wheels and said master wheel, so as tobringr about the successive register of said master wheel with each ofsaid computing wheels, a traveling carriage for controlling the relativemovement between said computing wheels and said master wheel, anescapemcnt mechanism for said carriage, a se 1ies of numeral keys forcontrolling the action ot said carriage escapement mechanism and alsothe action of said computing mechanism, and means for operating theescapcmcnt mechanism for said computing mechanism intermediate thesuccessive actnations ot said escapement mechanism for .said carriage.

69. The combination With a gang oli' computing Wheels, ot a master Wheel'for rotating said computing Wheels, said master Wheel having a jumpmovement to come into successive register With each ot said computingWheels, a traveling carriage tor enabling jump movements ot said masterWheel, numeral keys for controlling the travel ot said carriage and therotation ot said master Wheel, and automatic means Jlor anticipating ajump movement 'ot said master Wheel to be effected by said carria 70.rlhe combination With a gang of computing Wheels, a master Wheel forrotating said computing Wheels. said .master Wheel having` a i mpmovement to come into successive register With each oit said computingWheels, a traveling ca rige ior enabling the jump movements ot saidmaster Wheel. numeral keys For controlling the travel oi said carriageand the rotation oi: said master Wheel, automatic means toranticipatinga jump movement ot said maste' 'Wheel to be effected by saidfarriage and including compensating means for allowing tor thesubsequent movement of said cmriage While maintaining said master Wheelin register With the computing Wheel With Which it has jumped in itsanticipating movement.

7l. rihe combination With gang of computing Wheels, ot a master Wheel'for driving said computing- Wheels smeet/im. sf computing Wheels andSaid master -Wheel having a relative traveling movement to l v"i g saidmaster Wheel smic/,tim into register with each of said computing Wheels,a carriage -lor controlling the relative movement betWeen said masterWheel and said computing Wheels, and automatic means tor anticipatingsaid relative movement to bring about the registration ot each computingWheel With said master Wheel.

72. The combination With a gang ot computing Wheels, oit a ma ster Wheel'for driving said computing Wheels scriatz'm. said computing Wheels andsaid master Wheel. having a relative traveling movement to brina' saidmaster Wheel Serial/'im into register With each oli said computingWheels. a oaf: ge tor controlling the relffrtive movement hetiveen saidmaster Wheel and said computing Wheels. automatic means tor anticipatingsaid relative movement to bring about the registration ot each computingWheel With said master Wheel.. and including compensating means foralloWing said carriage to catch up With the anticipated relative travelbetWeen said computing Wheels and said master Wheel While maintainingthe master Wheel in register With the computing Wheel With Which it hasengaged by said anticipating relative movement.

7 3. The combination With tivo primary elements, to Wit, a series ot'computing Wheels and a master Wheel tor driving said computing Wheelsserz'cw'm, ot a carriage connected to control a relative movementbetween said computing Wheels and said master Wheel so "j as to enablesuccessive registering of said master Wheel With each of said computingWheels, and compensating means enabling the drive ot said computingWheels by said master Wheel both While said carriage is sta- "f ments ofsaid master Wheel and said computing Wheels taking place intermediatethe movements ot said carriage.

75. rlhe combination Witi tivo primary elements including a gang oicomputing Wheels and a master Wheel tor driving said computing Wheels,said primary elements having a relative travel to bring said masterWheel into successive register With each of said computing Wheels, of aseries ot numeral keys tor controlling both the extent of rotation oisaid master Wheel and the relative travel between said primary elements,and compensating means for lengthening the period of' engagement of themaster Wheel With the live computing Wheel, including means Y' to'anticipating the relative movement between said primary elements.

76. rlhe combination With a computing mechanism, of a series o'f numeralkeys for controlling the action of said computing mechanism, connectionsbetiveen said numeral keys and said computing mechanism enabling thecontrol of said computing mechanism by said numeral keys, and means forn completing a computing action by said computing mechanism, broughtinto play by the breaking ot an actuated connection at the stroke ot anumeral key, Whereby computation oan bc ei'ected solely When the controlby the actuated numeral key ot the computing mechanism is interrupted.

77. The combination With a computing mechanism, ol a series oit numeralkeys connected to control the action ot' said computing mechanism, andmeans brought into action bythe interruption of the control by anynumeral key oi said computing mechanism, to start said computingmechanism into action to compute a number corresponding to the numeralkey having its control so l interrupted.

78. The combination With a computing mechanism including tivo primaryelements, to Wit, a gang of computing Wheels and a master Wheel fordriving said computing i wheels seriali/im, said primary elements havinga relative traveling movement to bring said master wheel into successiveregister with each ci' said computing wheels, ont a traveling carriageconnected to enable said rela- 'tive movement between said primaryelements, a series et numeral keys connected to control the travelingmovements oit said carriage at definite point in trie stroke of eachimmoral key, said numeral keys being also connected to control theaction of said computing mechanism, including the instant and extent ofrotation of said master wheel at a deinite point in the movement o anumeral key, and compensating means for synchronizing the period ofrotation of said master wheel with the period of registry of the masterwheel with the computing wheel to be rotated.

79. rEhe combination with a computing mechanism, including two primaryelements, to wit, a of computing wheels and a master wheel tordrii-.iing said computing wheels Soldatini, said primary elements havinga relative traveling movement to bring said master wheel into successiveregister with each ot said computing wheels, of a traveling carriageconnected to enable said relative movement between said primarvelements, a series of numeral keys connected to control the travelingmovements of said carriage at a denite point in the stroke oi eachnumeral key, said numeral keys being` also connected to control theaction or" said computing mechanism including the instant and extent ofrotation of said master wheel at a delinite point in the movement ofnumeral kei, and timing means for asynchronizing the periods of rest ofsaid carriage and said primary elements.

80. The combination with a computing mechanism, including two primaryelements, to wit, gang of computing wheels and a master wheel fordriving said computing wheels serial/Lim, said primary elements having arelative traveling movement to bring said master wheel into successiveregister with each oit said computing wheels, of a traveling carriageconnected to enable relative movement between said primary elements, aseries of numeral keys connected to control the traveling movements otsaid carriage and the action of said computing mechanism, and timingmeans for effecting at widely different portions of' the numeralkeystroke the initial actuation of the computing mechanism and the initialtraveling movement of the carriage.

81. The combination with a computing mechanism, including two primaryelements, to wit, a gang oic computing wheels and a master wheel fordriving said computing wheels Scrz'otim, said primary elements having arelative traveling movement to bring newness said master wheel intosuccessive register' with each oi said computing wheels, of a travelingcarriage connected to enable said relative movement between said primaryelements, a series of? numeral keys connected to control the tr velingmovements oi" said carriage at o. definite point in the stroke ot each lkey, said numeral keys being also connected to control the action ofsaid computing ziechanism, including` the instant and extent et'rotation of said master wheel at a definite point in the stroke oi" anumeral key, and means for advancing the period ot computing action asrelated to the key stroke, to eiiiect at widely dia'erent portions etthe numeral-key stroke the initial actuation oit the computing mechanismand the initial traveling movement of the carriage.

82. rlhe combination with a computing 1 iechanism, ot a series ofnumeral keys connected to control the action oit said computingmechanism, and means 'for enabling thc action of said computingmechanism to bc started on the down stroke of and to continue during aperiod overlapping a considerable portion of the up stroke oit theactuated numeral key.

S3. rThe combination with a computing mechanism including a series ofcomputing wheels and a master actuator movable relatively to each other,a series or numeral keys to control the operation of said masteractuator, a travelingcarriage controlled in its movement bv said numeralkeys and controlling the relative movement or' the computing wheels andactuator, a computing drive oi a computing wheel by the master actuatordepending upon the period of registry of the master actuator with thatcomputing wheel; or means for increasing the possible period of eachoperation ot said actuator comprising devices permitting the computingaction to overlap the period oi movement or the operated numeral key,and to enable a movement ot the carriage, while no relative movementbetween the computing mechanism and actuator takes place.

84. rlhe combination with a computing mechanism including a series ofcomputing wheels and a master actuator movable relatively to each other,a series ofnumeral keys to control the operation oi said masteractuator, a traveling carriage controlled in its mov-ement by saidnumeral keys and controlling the relative movement of the computingwheels and actuator, a computing drive oit' a computing wheel by themaster actuator depending upon the period of registry of the masteractuator with that computing wheel; of means for increasing the possibleperiod of each operation o1" said actuator comprising devices permittingthe computing action to overlap the period of movement of the operatednumeral key, and

